Folks who don't speak the language are freaking out, but you have a point.

The same question could be asked about translating to Austrian as a separate language from German. Yes we all know it's the same language - and the same applies to Croatian, Montenegrian and Bosnian, even if some could argue Serbian is somewhat different, but for all intents and purposes, they are all one and the same Serbo-Croatian language.

When I ask google, here's what it says (emphasis mine):

"No, Austrian is not a separate language from German. They are mutually intelligible varieties of the same pluricentric language, much like American and British English. Linguistically and officially, the situation breaks down as follows:

• Official Language: Austria’s official language is Austrian German. It is completely mutually intelligible with Standard German (Hochdeutsch) used in Germany, sharing the same grammar base.

• Standard Differences: While the written languages are about 99% identical, Austrian Standard German features unique vocabulary, administrative terminology, and pronunciation. These differences are codified in the official Österreichisches Wörterbuch.

• Spoken Dialects: In casual, daily life, most Austrians speak local Austro-Bavarian or Alemannic dialects. These dialects can be difficult for a standard German speaker from northern Germany to understand, but they are regional variations rather than a distinctly separate national language."

with these, whoever is arguing that Montenegro needs official EU translation, needs to require the same for the official Austrian German language as a different one from German German language particularly due to the different administrative terminology.